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Low Energy GSM/GPRS Module for Sensoric Applications
Pál, Tamás ; Mráz, Ľubomír (referee) ; Šimek, Milan (advisor)
This project deals with the problematics of self-powered universal GSM/GPRS module which is used for sensorical applications. The first part analyzes features of mobile networks and applying energy from the environment. The second section expalins the various parts and characteristic of their associated components together with some fundamental functions of the technology for possible realization of sensoric module. The third part describes plan for system realisation and fourth parth illustrates achiaved results.
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Web user interface for communicating with the wireless sensor nodes
Černocký, Petr ; Mráz, Ľubomír (referee) ; Červenka, Vladimír (advisor)
The aim of this master's thesis is to design and create web application that allows analysing and monitoring wireless sensor networks. The main function is to load plan of given area and shown position of the sensor network nodes. These nodes allow user to set which measured phenomenon will be display on them. The measured values can be loaded directly from sensor nodes or from database server. Visualized values for user defined time period can be displayed in the implemented graph. The application itself is programmed in JavaFX language and follows the rules of REST architecture. For easier communication with database server application uses the MyBatis framework.
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Energy efficient wireless sensor platform for a snow load measurement
Bačinský, Martin ; Kouřil, Jiří (referee) ; Mráz, Ľubomír (advisor)
This bachelor thesis describes the problematics of snow load measuring. At first, sensors' principles of functionality for indirect measurements are mentioned. In the second part, the problematics of direct measurement with tensiometer takes place. The construction of wireless apparatus with the help of module ZigBit for the snow load measurement is the result of this work. Sensor board is designed in Eagle software, obeying standards for machine vacuum pickup and fabrication. The apparatus works in two modes. During indirect measuring, additional processing of data is necessary. In this mode, the sensor board has very low energy consuption and therefore long service life also after a battery connection. In the second mode, the apparatus is automatically sending data about actual snow load of particular roof. The whole machine communicates with the help of ZigBit module and ZigBee protocol IEEE 802.15.4. The communication distance between sensorial points is allowed up to 100m. At last but not at least, tensiometer UTILCELL M230 measurements are attached. In attachments, chemas and printed circuit boards are presented, too. Except documentation, the CD contains also libraries for components and details for DPS machine production in Eagle Software.
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Packet Analyser for Wireless Sensor Networks with Ethernet Interface
Leixner, Martin ; Šimek, Milan (referee) ; Mráz, Ľubomír (advisor)
The aim of this work is study the standard IEEE 802.15.4. Implement a packet analyzer for the frequency band 2.4GHz and sub-gigahertz band. The analyzer will provide accu- rate time stamp to the received packets. It will operate remotely and controlled by a web page. Implemented analyzer will work with the inspection software Wireshark. Finally, evaluate the parameters of the proposed packet analyzer.
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Energy efficient wireless sensor platform for a snow load measurement
Bačinský, Martin ; Kouřil, Jiří (referee) ; Mráz, Ľubomír (advisor)
This bachelor thesis describes the problematics of snow load measuring. At first, sensors' principles of functionality for indirect measurements are mentioned. In the second part, the problematics of direct measurement with tensiometer takes place. The construction of wireless apparatus with the help of module ZigBit for the snow load measurement is the result of this work. Sensor board is designed in Eagle software, obeying standards for machine vacuum pickup and fabrication. The apparatus works in two modes. During indirect measuring, additional processing of data is necessary. In this mode, the sensor board has very low energy consuption and therefore long service life also after a battery connection. In the second mode, the apparatus is automatically sending data about actual snow load of particular roof. The whole machine communicates with the help of ZigBit module and ZigBee protocol IEEE 802.15.4. The communication distance between sensorial points is allowed up to 100m. At last but not at least, tensiometer UTILCELL M230 measurements are attached. In attachments, chemas and printed circuit boards are presented, too. Except documentation, the CD contains also libraries for components and details for DPS machine production in Eagle Software.
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Packet Analyser for Wireless Sensor Networks with Ethernet Interface
Leixner, Martin ; Šimek, Milan (referee) ; Mráz, Ľubomír (advisor)
The aim of this work is study the standard IEEE 802.15.4. Implement a packet analyzer for the frequency band 2.4GHz and sub-gigahertz band. The analyzer will provide accu- rate time stamp to the received packets. It will operate remotely and controlled by a web page. Implemented analyzer will work with the inspection software Wireshark. Finally, evaluate the parameters of the proposed packet analyzer.
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Attendance System Terminal
Chmelař, Jakub ; Mráz, Ľubomír (referee) ; Strašil, Ivo (advisor)
This thesis deals with electronic attendance systems which are nowadays being widely used to record employee attendance. General problem of attendance tracking is introduced in first part of the thesis along with a conceptual solution of an attendance system terminal. Author then describes a circuitry and a PCB design of a baseboard for a Cubieboard2 minicomputer, a RFID reader and a touchscreen LCD display. After successful testing of said PCB, the terminal has been completed and it was possible to focus on a software solution. Latter part of the thesis is dedicated to a specifics of the Allwinner A20 platform and its support by a GNU/Linux operating system. In following chapter author describes use of a Buildroot software for creating a Linux based binary image for an aforementioned minicomputer. Since an operating system and a peripheral support were successfully tested author could focus on a design and implementation of an attendance software that is described in the final chapter.
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Over the Air Firmware Upgrade for Wireless Sensor Networks
Minár, Tomáš ; Červenka, Vladimír (referee) ; Mráz, Ľubomír (advisor)
This diploma thesis is dedicated to one of the problems in wireless sensor networks – over the air upgrade (OTAU) of nodes. The requirements for upgrade and possible ways how to transfer new firmware image to nodes are stated in the first chapter. The second chapter is focused on solving the problem of firmware dissemination to whole network based on analysis of known protocols. The practical part of this thesis deals with OTAU design and implementation in Lightweight Mesh software stack from Atmel. Proposed system was tested on deRFnode platform with plugged in deRFmega128 module. The upgrade process of designed system is evaluated on test network in last part. Practical test results are compared with OTAU solution for BitCloud.
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